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21406 Jimyang (1998 FZ63)
Classification: Main-belt Asteroid          SPK-ID: 2021406
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1234081332025363 3.2815e-08  
a 2.340409282422834 8.1179e-09 au
q 2.051583741949145 7.7074e-08 au
i 6.784061828921379 4.6033e-06 deg
node 37.52779797834911 2.999e-05 deg
peri 276.4184405443773 3.6065e-05 deg
M 13.09261414984054 2.085e-05 deg
tp 2459152.938010463591
(2020-Oct-30.43801046)
7.5715e-05 TDB
period 1307.784376530787
3.58
6.8043e-06
1.863e-08
d
yr
n .2752747367689059 1.4322e-09 deg/d
Q 2.629234822896524 9.1198e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1741  
   data-arc span      21839 days (59.79 yr)  
   first obs. used      1960-11-24  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50051  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:44:59  

Additional Information
 Earth MOID = 1.04954 au 
 Jupiter MOID = 2.62663 au 
 T_jup = 3.545 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.46   n/a E2021B10  
diameter diameter 2.873 km 0.426 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 9.185 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.408   0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

21406 Jimyang           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Jimmy Chen Yang (b. 1987) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his medicine and health project. He attends the Plano Senior High School, Plano, Texas.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050224/MPCPages.arcLast Updated: 2005-02-28

[ show close-approach data ]
Alternate Designations
 1998 FZ63 = 1960 WF1 = 1999 XU17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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